fix(azure): add azure-anthropic support to router, evaluator, copilot, and tokenization

apps/sim/app/api/copilot/chat/route.ts

@@ -285,6 +285,13 @@ export async function POST(req: NextRequest) {
           apiVersion: 'preview',
           endpoint: env.AZURE_OPENAI_ENDPOINT,
         }
+      } else if (providerEnv === 'azure-anthropic') {
+        providerConfig = {
+          provider: 'azure-anthropic',
+          model: envModel,
+          apiKey: env.AZURE_ANTHROPIC_API_KEY,
+          endpoint: env.AZURE_ANTHROPIC_ENDPOINT,
+        }
       } else if (providerEnv === 'vertex') {
         providerConfig = {
           provider: 'vertex',

apps/sim/blocks/utils.ts

@@ -80,7 +80,7 @@ export function getApiKeyCondition() {
 
 /**
  * Returns the standard provider credential subblocks used by LLM-based blocks.
- * This includes: Vertex AI OAuth, API Key, Azure OpenAI, Vertex AI config, and Bedrock config.
+ * This includes: Vertex AI OAuth, API Key, Azure (OpenAI + Anthropic), Vertex AI config, and Bedrock config.
  *
  * Usage: Spread into your block's subBlocks array after block-specific fields
  */
@@ -111,14 +111,14 @@ export function getProviderCredentialSubBlocks(): SubBlockConfig[] {
     },
     {
       id: 'azureEndpoint',
-      title: 'Azure OpenAI Endpoint',
+      title: 'Azure Endpoint',
       type: 'short-input',
       password: true,
-      placeholder: 'https://your-resource.openai.azure.com',
+      placeholder: 'https://your-resource.services.ai.azure.com',
       connectionDroppable: false,
       condition: {
         field: 'model',
-        value: providers['azure-openai'].models,
+        value: [...providers['azure-openai'].models, ...providers['azure-anthropic'].models],
       },
     },
     {
@@ -202,7 +202,7 @@ export function getProviderCredentialSubBlocks(): SubBlockConfig[] {
  */
 export const PROVIDER_CREDENTIAL_INPUTS = {
   apiKey: { type: 'string', description: 'Provider API key' },
-  azureEndpoint: { type: 'string', description: 'Azure OpenAI endpoint URL' },
+  azureEndpoint: { type: 'string', description: 'Azure endpoint URL' },
   azureApiVersion: { type: 'string', description: 'Azure API version' },
   vertexProject: { type: 'string', description: 'Google Cloud project ID for Vertex AI' },
   vertexLocation: { type: 'string', description: 'Google Cloud location for Vertex AI' },

apps/sim/executor/handlers/evaluator/evaluator-handler.ts

@@ -130,9 +130,11 @@ export class EvaluatorBlockHandler implements BlockHandler {
         providerRequest.vertexLocation = evaluatorConfig.vertexLocation
       }
 
-      if (providerId === 'azure-openai') {
+      if (providerId === 'azure-openai' || providerId === 'azure-anthropic') {
         providerRequest.azureEndpoint = inputs.azureEndpoint
-        providerRequest.azureApiVersion = inputs.azureApiVersion
+        if (providerId === 'azure-openai') {
+          providerRequest.azureApiVersion = inputs.azureApiVersion
+        }
       }
 
       if (providerId === 'bedrock') {

apps/sim/executor/handlers/router/router-handler.ts

@@ -105,9 +105,11 @@ export class RouterBlockHandler implements BlockHandler {
         providerRequest.vertexLocation = routerConfig.vertexLocation
       }
 
-      if (providerId === 'azure-openai') {
+      if (providerId === 'azure-openai' || providerId === 'azure-anthropic') {
         providerRequest.azureEndpoint = inputs.azureEndpoint
-        providerRequest.azureApiVersion = inputs.azureApiVersion
+        if (providerId === 'azure-openai') {
+          providerRequest.azureApiVersion = inputs.azureApiVersion
+        }
       }
 
       if (providerId === 'bedrock') {
@@ -262,9 +264,11 @@ export class RouterBlockHandler implements BlockHandler {
         providerRequest.vertexLocation = routerConfig.vertexLocation
       }
 
-      if (providerId === 'azure-openai') {
+      if (providerId === 'azure-openai' || providerId === 'azure-anthropic') {
         providerRequest.azureEndpoint = inputs.azureEndpoint
-        providerRequest.azureApiVersion = inputs.azureApiVersion
+        if (providerId === 'azure-openai') {
+          providerRequest.azureApiVersion = inputs.azureApiVersion
+        }
       }
 
       if (providerId === 'bedrock') {

apps/sim/lib/copilot/config.ts

@@ -12,6 +12,7 @@ const VALID_PROVIDER_IDS: readonly ProviderId[] = [
   'openai',
   'azure-openai',
   'anthropic',
+  'azure-anthropic',
   'google',
   'deepseek',
   'xai',

apps/sim/lib/copilot/types.ts

@@ -147,6 +147,12 @@ export type CopilotProviderConfig =
       apiVersion?: string
       endpoint?: string
     }
+  | {
+      provider: 'azure-anthropic'
+      model: string
+      apiKey?: string
+      endpoint?: string
+    }
   | {
       provider: 'vertex'
       model: string
@@ -155,7 +161,7 @@ export type CopilotProviderConfig =
       vertexLocation?: string
     }
   | {
-      provider: Exclude<ProviderId, 'azure-openai' | 'vertex'>
+      provider: Exclude<ProviderId, 'azure-openai' | 'azure-anthropic' | 'vertex'>
       model?: string
       apiKey?: string
     }

apps/sim/lib/tokenization/constants.ts

@@ -21,6 +21,11 @@ export const TOKENIZATION_CONFIG = {
       confidence: 'high',
       supportedMethods: ['heuristic', 'fallback'],
     },
+    'azure-anthropic': {
+      avgCharsPerToken: 4.5,
+      confidence: 'high',
+      supportedMethods: ['heuristic', 'fallback'],
+    },
     google: {
       avgCharsPerToken: 5,
       confidence: 'medium',

apps/sim/lib/tokenization/estimators.ts

@@ -204,6 +204,7 @@ export function estimateTokenCount(text: string, providerId?: string): TokenEsti
       estimatedTokens = estimateOpenAITokens(text)
       break
     case 'anthropic':
+    case 'azure-anthropic':
       estimatedTokens = estimateAnthropicTokens(text)
       break
     case 'google':